/* =========================================================
   Roof Insulation Solutions Ltd
   Trade-site system: photo-led, condensed display type,
   charcoal + insulation-yellow, square corners.
   ========================================================= */

:root {
  --ink: #0f1317;
  --char: #171c21;
  --char-2: #232a31;
  --steel: #5b6670;
  --mist: #9aa4ad;
  --line: #e3e3de;
  --line-dark: rgba(255, 255, 255, 0.12);
  --paper: #f3f2ee;
  --white: #ffffff;
  --yellow: #ffc21a;
  --yellow-2: #f2b100;
  --yellow-soft: #fff4d1;
  --red: #c8371f;

  --display: "Barlow Condensed", "Arial Narrow", Impact, sans-serif;
  --body: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --r: 4px;
  --wrap: 1280px;
  --gut: clamp(16px, 4vw, 40px);
  --sec: clamp(72px, 9vw, 128px);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 100px; overflow-x: clip; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--white); color: var(--ink);
  font: 400 18px/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: clip;
}
img { display: block; max-width: 100%; height: auto; }
svg { display: block; }
a { color: inherit; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }

h1, h2, h3, h4 {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  line-height: 0.95; letter-spacing: 0.005em; margin: 0 0 0.45em; text-wrap: balance;
}
h1 { font-size: clamp(3rem, 7.4vw, 6.6rem); }
h2 { font-size: clamp(2.5rem, 5.2vw, 4.6rem); }
h3 { font-size: clamp(1.6rem, 2.4vw, 2.1rem); line-height: 1; }
h4 { font-size: 1.35rem; }
.hl { color: var(--yellow); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.sec { padding: var(--sec) 0; }
.sec--paper { background: var(--paper); }
.sec--dark { background: var(--char); color: #d6dadd; }
.sec--dark h2, .sec--dark h3, .sec--dark h4 { color: #fff; }

.tag {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 20px;
  font: 600 0.82rem/1 var(--body); letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel);
}
.tag::before { content: ""; width: 10px; height: 10px; background: var(--yellow); flex: none; }
.sec--dark .tag, .on-photo .tag { color: #c2c8cd; }

.lead { font-size: clamp(1.1rem, 1.5vw, 1.28rem); line-height: 1.55; color: var(--steel); max-width: 60ch; }
.sec--dark .lead { color: #b6bdc3; }
.muted { color: var(--steel); }
.head { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px 64px; align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.head h2 { margin: 0; }
.head .lead { margin: 0; }
.head--stack { display: block; max-width: 820px; }
.head--stack .lead { margin-top: 18px; }
@media (max-width: 860px) { .head { grid-template-columns: 1fr; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: stretch; min-height: 56px; border-radius: var(--r);
  font: 700 1rem/1 var(--body); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; cursor: pointer;
  border: 0; overflow: hidden; transition: transform .15s ease, background-color .2s, color .2s; white-space: nowrap;
}
.btn > span { display: inline-flex; align-items: center; gap: 10px; padding: 0 24px; }
.btn > i { display: inline-grid; place-items: center; width: 56px; flex: none; }
.btn svg { width: 20px; height: 20px; transition: transform .2s; }
.btn:active { transform: translateY(1px); }
.btn--y { background: var(--yellow); color: var(--ink); }
.btn--y > i { background: var(--yellow-2); color: var(--ink); box-shadow: inset 1px 0 0 rgba(15,19,23,.14); }
.btn--y:hover { background: var(--yellow-2); }
.btn:hover > i svg { transform: translateX(3px); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark > i { background: var(--yellow); color: var(--ink); }
.btn--dark:hover { background: #000; }
.btn--line { background: transparent; color: inherit; box-shadow: inset 0 0 0 2px currentColor; }
.btn--line > span { padding: 0 22px; }
.btn--line:hover { background: rgba(255,255,255,.1); }
.btn--line.btn--on-light:hover { background: var(--ink); color: #fff; box-shadow: inset 0 0 0 2px var(--ink); }
.btn--sm { min-height: 48px; font-size: 0.92rem; }
.btn--sm > i { width: 48px; }
.btn--sm > span { padding: 0 18px; }
.btn--block { display: flex; width: 100%; }
.btn--block > span { flex: 1; justify-content: center; }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }

.link-arrow { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: .92rem; text-decoration: none; }
.link-arrow svg { width: 18px; height: 18px; transition: transform .2s; }
.link-arrow:hover svg, a:hover .link-arrow svg { transform: translateX(4px); }

/* ---------- Topbar / header ---------- */
.skip { position: absolute; left: 12px; top: -80px; z-index: 200; background: var(--yellow); color: var(--ink); padding: 12px 18px; font-weight: 700; }
.skip:focus { top: 12px; }

.topbar { background: var(--ink); color: #aeb5bb; font-size: 0.9rem; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 42px; }
.topbar ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.topbar li { display: inline-flex; align-items: center; gap: 8px; }
.topbar svg { width: 15px; height: 15px; color: var(--yellow); }
.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
.topbar a:hover { color: var(--yellow); }
@media (max-width: 900px) { .topbar .t-hide { display: none; } }
@media (max-width: 600px) { .topbar ul:first-child { display: none; } .topbar .wrap { justify-content: center; } }

.header { position: sticky; top: 0; z-index: 80; background: #fff; border-bottom: 1px solid var(--line); transition: box-shadow .2s; }
.header.is-scrolled { box-shadow: 0 6px 24px rgba(15,19,23,.08); }
.header .wrap { display: flex; align-items: center; gap: 28px; min-height: 84px; }
.logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); flex: none; }
.logo svg { width: 46px; height: 46px; }
.logo b { display: block; font: 700 1.55rem/0.9 var(--display); text-transform: uppercase; letter-spacing: .01em; }
.logo small { display: block; font: 600 0.7rem/1 var(--body); letter-spacing: .24em; text-transform: uppercase; color: var(--steel); margin-top: 5px; }

.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav ul a { display: block; padding: 10px 14px; text-decoration: none; font-weight: 600; font-size: 1.02rem; color: var(--ink); position: relative; }
.nav ul a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 3px; background: var(--yellow); transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.nav ul a:hover::after, .nav ul a[aria-current="page"]::after { transform: scaleX(1); }
.nav__call { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.nav__call i { width: 46px; height: 46px; display: grid; place-items: center; background: var(--yellow); border-radius: 50%; }
.nav__call svg { width: 20px; height: 20px; }
.nav__call small { display: block; font-size: .75rem; color: var(--steel); text-transform: uppercase; letter-spacing: .12em; font-weight: 600; }
.nav__call b { font: 700 1.35rem/1 var(--display); letter-spacing: .02em; }
.menu-btn { display: none; margin-left: auto; width: 50px; height: 50px; border: 0; background: var(--ink); color: #fff; border-radius: var(--r); cursor: pointer; place-items: center; }
.menu-btn svg { width: 24px; height: 24px; }
.nav__close, .scrim { display: none; }

@media (max-width: 1220px) { .nav__call { display: none; } }
@media (max-width: 980px) {
  .menu-btn { display: grid; }
  .nav {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(380px, 90vw); z-index: 120; margin: 0;
    flex-direction: column; align-items: stretch; gap: 24px; padding: 90px 26px 28px; background: var(--ink); overflow-y: auto;
    transform: translateX(100%); visibility: hidden; transition: transform .3s ease, visibility 0s .3s;
  }
  .nav.is-open { transform: none; visibility: visible; transition: transform .3s ease; }
  .nav ul { flex-direction: column; }
  .nav ul a { color: #fff; font: 700 2rem/1 var(--display); text-transform: uppercase; padding: 14px 0; border-bottom: 1px solid var(--line-dark); }
  .nav ul a::after { display: none; }
  .nav ul a[aria-current="page"] { color: var(--yellow); }
  .nav__call { display: flex; color: #fff; }
  .nav .btn > span { flex: 1; }
  .nav__call small { color: var(--mist); }
  .nav__close { display: grid; position: absolute; top: 18px; right: 18px; width: 50px; height: 50px; background: var(--char-2); color: #fff; border: 0; border-radius: var(--r); place-items: center; cursor: pointer; }
  .nav__close svg { width: 22px; height: 22px; }
  .scrim { display: block; position: fixed; inset: 0; z-index: 110; background: rgba(0,0,0,.55); opacity: 0; pointer-events: none; transition: opacity .3s; }
  .scrim.is-open { opacity: 1; pointer-events: auto; }
}

/* ---------- Hero ---------- */
.hero { position: relative; color: #fff; background: var(--ink); overflow: hidden; isolation: isolate; }
.hero__bg { position: absolute; inset: 0; z-index: -1; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,13,16,.9) 0%, rgba(10,13,16,.72) 45%, rgba(10,13,16,.28) 100%), linear-gradient(0deg, rgba(10,13,16,.55), transparent 40%); }
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.25fr minmax(320px, 0.75fr); gap: clamp(32px, 5vw, 80px); align-items: center; padding-top: clamp(56px, 8vw, 110px); padding-bottom: clamp(56px, 8vw, 110px); }
.hero h1 { color: #fff; margin-bottom: 26px; }
.hero .lead { color: #d3d8dc; margin-bottom: 34px; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 12px 26px; list-style: none; padding: 0; margin: 38px 0 0; font-weight: 600; color: #e7eaec; }
.hero__badges li { display: inline-flex; gap: 9px; align-items: center; }
.hero__badges svg { width: 20px; height: 20px; color: var(--yellow); }
@media (max-width: 980px) { .hero .wrap { grid-template-columns: 1fr; } }

.page-hero { position: relative; color: #fff; background: var(--ink); overflow: hidden; isolation: isolate; }
.page-hero .hero__bg::after { background: linear-gradient(90deg, rgba(10,13,16,.92) 0%, rgba(10,13,16,.72) 55%, rgba(10,13,16,.45) 100%); }
.page-hero .wrap { position: relative; padding-top: clamp(56px, 7vw, 104px); padding-bottom: clamp(56px, 7vw, 104px); }
.page-hero h1 { color: #fff; max-width: 13ch; }
.page-hero .lead { color: #d3d8dc; margin-bottom: 32px; }
.crumbs { font-size: .9rem; color: #aab2b8; margin-bottom: 28px; }
.crumbs ol { display: flex; gap: 10px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.crumbs li + li::before { content: "/"; margin-right: 10px; color: var(--yellow); }
.crumbs a { color: #fff; text-decoration: none; }
.crumbs a:hover { color: var(--yellow); }

/* ---------- Quote card ---------- */
.quote { background: #fff; color: var(--ink); border-radius: var(--r); padding: clamp(24px, 3vw, 36px); box-shadow: 0 30px 80px rgba(0,0,0,.35); border-top: 6px solid var(--yellow); }
.quote h2 { font-size: clamp(2rem, 3vw, 2.6rem); margin-bottom: 6px; }
.quote > p { color: var(--steel); font-size: 1rem; margin-bottom: 22px; }
.quote__foot { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--steel); margin: 4px 0 0; }
.quote__foot svg { width: 16px; height: 16px; color: var(--ink); flex: none; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 14px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .form__row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; align-content: start; }
.field label, .field .label { font-weight: 600; font-size: .94rem; }
.field .hint { font-weight: 400; color: var(--steel); }
.field input, .field textarea, .field select {
  width: 100%; min-height: 54px; padding: 14px 16px; border: 1.5px solid #d5d7d3; border-radius: var(--r); background: #fafaf8;
  font: inherit; font-size: 16px; color: var(--ink); transition: border-color .15s, background-color .15s;
}
.field select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f1317' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 18px; padding-right: 44px; }
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--ink); background-color: #fff; box-shadow: 0 0 0 3px rgba(255,194,26,.6); }
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: var(--red); }
.field .error { display: none; color: var(--red); font-size: .88rem; font-weight: 500; }
.field.has-error .error { display: block; }
.form__note { font-size: .86rem; color: var(--steel); margin: 0; }
.form__note a { color: var(--ink); }
.form__status { display: none; padding: 16px 18px; border-radius: var(--r); background: #e7f3ea; color: #1f4b2c; font-weight: 500; }
.form__status.is-visible { display: block; }
.form__status.is-error { background: #fbe4e0; color: #6a1a0e; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choice { position: relative; }
.choice input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; z-index: 1; width: 100%; height: 100%; }
.choice span { display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 0 18px; border: 1.5px solid #d5d7d3; border-radius: var(--r); font-weight: 600; font-size: .98rem; background: #fff; transition: all .15s; }
.choice input:hover + span { border-color: var(--ink); }
.choice input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; box-shadow: inset 0 -4px 0 var(--yellow); }
.choice input:focus-visible + span { outline: 3px solid var(--yellow); outline-offset: 2px; }

/* ---------- Marquee ---------- */
.marquee { background: var(--yellow); color: var(--ink); overflow: hidden; }
.marquee__track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.marquee ul { display: flex; align-items: center; list-style: none; margin: 0; padding: 0; }
.marquee li { font: 700 clamp(1.5rem, 2.6vw, 2.3rem)/1 var(--display); text-transform: uppercase; padding: 22px 0; display: flex; align-items: center; white-space: nowrap; }
.marquee li::after { content: ""; width: 12px; height: 12px; background: var(--ink); margin: 0 30px; transform: rotate(45deg); }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }

/* ---------- Photo route cards ---------- */
.routes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 820px) { .routes { grid-template-columns: 1fr; } }
.photo-card { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: 540px; padding: clamp(24px, 3vw, 40px); border-radius: var(--r); overflow: hidden; color: #fff; text-decoration: none; isolation: isolate; }
.photo-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .7s ease; }
.photo-card::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,13,16,.1) 15%, rgba(10,13,16,.9) 100%); }
.photo-card:hover img { transform: scale(1.04); }
.photo-card__k { position: absolute; top: 24px; left: 24px; font: 700 .8rem/1 var(--body); letter-spacing: .16em; text-transform: uppercase; background: var(--yellow); color: var(--ink); padding: 9px 12px; border-radius: 2px; }
.photo-card h3 { font-size: clamp(2.3rem, 3.8vw, 3.4rem); margin-bottom: 12px; color: #fff; }
.photo-card p { color: #dfe3e6; max-width: 46ch; margin-bottom: 22px; }
.photo-card .link-arrow { color: var(--yellow); }
@media (max-width: 560px) { .photo-card { min-height: 460px; } }

/* ---------- Split / about ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: center; }
.split--top { align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.stack-photo { position: relative; padding-bottom: 56px; }
.stack-photo .main { border-radius: var(--r); width: 86%; aspect-ratio: 4/5; object-fit: cover; }
.stack-photo .inset { position: absolute; right: 0; bottom: 0; width: 50%; aspect-ratio: 1; object-fit: cover; border-radius: var(--r); border: 8px solid #fff; }
.stack-photo .badge { position: absolute; right: 6%; top: 32px; background: var(--yellow); color: var(--ink); padding: 20px 22px; border-radius: var(--r); max-width: 220px; box-shadow: 0 20px 40px rgba(0,0,0,.18); }
.stack-photo .badge b { display: block; font: 700 2.4rem/0.9 var(--display); text-transform: uppercase; }
.stack-photo .badge span { font-weight: 600; font-size: .95rem; line-height: 1.3; display: block; margin-top: 8px; }

.checks { list-style: none; padding: 0; margin: 0 0 30px; display: grid; gap: 14px; }
.checks li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; font-weight: 500; }
.checks li::before { content: ""; width: 26px; height: 26px; border-radius: 2px; background: var(--yellow) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f1317' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 15px no-repeat; margin-top: 1px; }
.checks--2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 560px) { .checks--2 { grid-template-columns: 1fr; } }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); margin-top: 36px; }
.pillars div { padding: 24px 20px 0 0; }
.pillars div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.pillars b { display: block; font: 700 1.5rem/1 var(--display); text-transform: uppercase; margin-bottom: 6px; }
.pillars span { color: var(--steel); font-size: .98rem; display: block; }
@media (max-width: 560px) { .pillars { grid-template-columns: 1fr; } .pillars div { padding-right: 0; } .pillars div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); margin-top: 20px; } }

/* ---------- Service rows ---------- */
.rows { border-top: 2px solid var(--ink); }
.row { display: grid; grid-template-columns: 250px 1.05fr 1fr 64px; gap: 36px; align-items: start; padding: 32px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
.row img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--r); }
.row h3 { margin-bottom: 18px; font-size: clamp(1.9rem, 2.8vw, 2.5rem); }
.row ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-weight: 500; }
.row ul li { display: flex; gap: 10px; align-items: center; }
.row ul li::before { content: ""; width: 14px; height: 4px; background: var(--yellow); flex: none; }
.row p { color: var(--steel); margin: 0; }
.row__go { width: 56px; height: 56px; border-radius: 50%; border: 2px solid var(--ink); display: grid; place-items: center; transition: all .2s; justify-self: end; }
.row__go svg { width: 22px; height: 22px; transform: rotate(-45deg); transition: transform .2s; }
.row:hover .row__go { background: var(--yellow); border-color: var(--yellow); }
.row:hover .row__go svg { transform: rotate(0); }
.row:hover h3 { text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 4px; text-underline-offset: 6px; }
@media (max-width: 1020px) { .row { grid-template-columns: 200px 1fr 56px; } .row p { grid-column: 2 / 3; } .row__go { grid-row: 1; grid-column: 3; } }
@media (max-width: 640px) { .row { grid-template-columns: 1fr; gap: 18px; } .row p { grid-column: auto; } .row__go { display: none; } }

/* ---------- Dark photo section ---------- */
.photo-sec { position: relative; color: #fff; background: var(--ink); overflow: hidden; isolation: isolate; }
.photo-sec > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.photo-sec::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,13,16,.84), rgba(10,13,16,.95)); }
.photo-sec h2, .photo-sec h3 { color: #fff; }
.photo-sec .lead { color: #c3c9ce; }
.photo-sec .tag { color: #c2c8cd; }
.problems { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); }
.problems article { padding: 36px 32px 8px 0; }
.problems article + article { padding-left: 32px; border-left: 1px solid var(--line-dark); }
.problems .num { font: 700 4.6rem/0.8 var(--display); color: var(--yellow); display: block; margin-bottom: 22px; }
.problems p { color: #c3c9ce; }
.problems strong { color: #fff; font-weight: 600; }
@media (max-width: 900px) { .problems { grid-template-columns: 1fr; } .problems article { padding-right: 0; } .problems article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line-dark); } }

/* ---------- Products (cards) ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1100px) { .prod-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .prod-grid { grid-template-columns: 1fr; } }
.prod { position: relative; display: flex; flex-direction: column; min-height: 400px; padding: 28px 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); text-decoration: none; color: inherit; transition: transform .25s, box-shadow .25s; overflow: hidden; }
.prod:hover { transform: translateY(-4px); box-shadow: 0 24px 50px rgba(15,19,23,.12); }
.prod__top { display: flex; justify-content: space-between; align-items: center; }
.prod__n { font: 700 1.1rem/1 var(--display); color: var(--mist); letter-spacing: .1em; }
.prod__cost { font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--steel); }
.level { display: flex; gap: 4px; margin: 14px 0 0; }
.level i { width: 22px; height: 6px; background: var(--line); }
.level i.on { background: var(--yellow); }
.prod h3 { font-size: 2.3rem; margin: auto 0 10px; padding-top: 40px; }
.prod p { color: var(--steel); font-size: 1rem; margin-bottom: 22px; }
.prod--dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.prod--dark p { color: #b6bdc3; }
.prod--dark .level i { background: var(--char-2); }
.prod--dark .level i.on { background: var(--yellow); }
.prod--dark .prod__cost { color: var(--mist); }
.prod--dark .link-arrow { color: var(--yellow); }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); padding: 0; margin: 0; }
.process li { list-style: none; background: var(--char); padding: 34px 28px 36px; position: relative; transition: background-color .25s; }
.process li:hover { background: var(--char-2); }
.process .num { text-transform: uppercase; font: 700 1.1rem/1 var(--display); color: var(--yellow); letter-spacing: .12em; display: block; margin-bottom: 72px; }
.process h3 { font-size: 2rem; }
.process p { color: #aab2b8; margin: 0; font-size: 1rem; }
.process li::after { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0; background: var(--yellow); transition: width .35s; }
.process li:hover::after { width: 100%; }
@media (max-width: 980px) { .process { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .process { grid-template-columns: 1fr; } .process .num { margin-bottom: 28px; } }

/* ---------- Explain grid ---------- */
.explain { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; list-style: none; padding: 0; margin: 0; }
.explain li { display: flex; gap: 16px; align-items: center; padding: 22px; background: var(--char-2); border-radius: var(--r); color: #fff; font-weight: 600; font-size: 1.06rem; }
.explain svg { width: 26px; height: 26px; color: var(--yellow); flex: none; }
@media (max-width: 900px) { .explain { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .explain { grid-template-columns: 1fr; } }

/* ---------- Ask list ---------- */
.ask { list-style: none; padding: 0; margin: 0; counter-reset: a; border-top: 2px solid var(--ink); }
.ask li { counter-increment: a; display: grid; grid-template-columns: 64px 1fr; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.ask li::before { content: counter(a, decimal-leading-zero); font: 700 1.8rem/1 var(--display); color: var(--ink); background: var(--yellow); width: 52px; height: 52px; display: grid; place-items: center; border-radius: 2px; }
.ask b { display: block; font: 700 1.5rem/1.05 var(--display); text-transform: uppercase; margin-bottom: 4px; }
.ask span { color: var(--steel); }

.alert { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 28px; border-radius: var(--r); background: var(--ink); color: #c9ced2; }
.alert > i { width: 52px; height: 52px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); border-radius: 2px; }
.alert > i svg { width: 26px; height: 26px; }
.alert h3 { color: #fff; font-size: 1.9rem; margin-bottom: 8px; }
.alert p { margin: 0 0 .6em; }
.alert p:last-child { margin: 0; }
.alert a { color: var(--yellow); font-weight: 600; }
@media (max-width: 480px) { .alert { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(36px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .faq-wrap { grid-template-columns: 1fr; } }
.faq-aside { position: sticky; top: 120px; }
@media (max-width: 900px) { .faq-aside { position: static; } }
.faq-card { margin-top: 32px; background: var(--ink); color: #c9ced2; padding: 28px; border-radius: var(--r); }
.faq-card h3 { color: #fff; font-size: 1.9rem; margin-bottom: 8px; }
.faq-card p { font-size: 1rem; }
.faq { border-top: 2px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 24px 0; font: 700 1.5rem/1.1 var(--display); text-transform: uppercase; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { width: 42px; height: 42px; flex: none; display: grid; place-items: center; background: var(--paper); border-radius: 50%; transition: background-color .2s, transform .25s; }
.faq summary i svg { width: 18px; height: 18px; }
.faq details[open] summary i { background: var(--yellow); transform: rotate(45deg); }
.faq summary:hover i { background: var(--yellow); }
.faq .a { padding: 0 60px 26px 0; color: var(--steel); }
.faq .a p:last-child { margin: 0; }
.faq .a a { color: var(--ink); font-weight: 600; }
@media (max-width: 560px) { .faq .a { padding-right: 0; } .faq summary { font-size: 1.3rem; } }

/* ---------- CTA ---------- */
.cta { position: relative; color: #fff; overflow: hidden; isolation: isolate; background: var(--ink); }
.cta > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.cta::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(10,13,16,.95) 0%, rgba(10,13,16,.82) 50%, rgba(10,13,16,.6) 100%); }
.cta .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(36px, 6vw, 96px); align-items: center; padding-top: var(--sec); padding-bottom: var(--sec); }
.cta h2 { color: #fff; }
.cta .lead { color: #cfd4d8; margin-bottom: 32px; }
.cta .tag { color: #c2c8cd; }
.cta__phone { display: inline-flex; align-items: center; gap: 16px; text-decoration: none; color: #fff; }
.cta__phone i { width: 64px; height: 64px; border-radius: 50%; background: var(--yellow); color: var(--ink); display: grid; place-items: center; flex: none; }
.cta__phone svg { width: 26px; height: 26px; }
.cta__phone small { display: block; color: var(--mist); text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 600; }
.cta__phone b { font: 700 2.4rem/1 var(--display); letter-spacing: .02em; }
.cta__phone:hover b { color: var(--yellow); }
@media (max-width: 900px) { .cta .wrap { grid-template-columns: 1fr; } }

/* ---------- Insulation page ---------- */
.pd { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(30px, 5vw, 80px); padding: clamp(48px, 6vw, 80px) clamp(0px, 2vw, 28px); border-top: 1px solid var(--line); scroll-margin-top: 100px; transition: background-color .4s; }
.pd:first-child { border-top: 2px solid var(--ink); }
.pd__name { position: sticky; top: 120px; align-self: start; }
.pd__name h3 { font-size: clamp(2.8rem, 4.8vw, 4.4rem); margin: 14px 0 12px; }
.pd__name p { color: var(--steel); }
.pd__body h4 { font: 700 .82rem/1 var(--body); letter-spacing: .16em; color: var(--steel); margin: 0 0 18px; }
.pd__body .intro { font-size: 1.24rem; color: var(--ink); line-height: 1.55; margin-bottom: 30px; }
.pd__meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.pd__meta span { padding: 9px 14px; background: var(--paper); border-radius: 2px; font-size: .92rem; font-weight: 600; }
.pd__meta span b { color: var(--steel); font-weight: 600; }
.match { display: none; align-items: center; gap: 8px; background: var(--ink); color: var(--yellow); font-weight: 700; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; padding: 8px 12px; border-radius: 2px; margin-bottom: 14px; }
.pd.is-match .match { display: inline-flex; }
.pd.is-match { background: var(--yellow-soft); }
@media (max-width: 860px) { .pd { grid-template-columns: 1fr; } .pd__name { position: static; } }

.finder { background: var(--ink); color: #c9ced2; border-radius: var(--r); padding: clamp(26px, 4vw, 56px); display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 60px); }
.finder h2 { color: #fff; font-size: clamp(2.3rem, 4vw, 3.6rem); }
.finder .tag { color: #c2c8cd; }
.finder fieldset { border: 0; padding: 0; margin: 0 0 26px; min-width: 0; }
.finder legend { font: 700 1.4rem/1 var(--display); text-transform: uppercase; color: #fff; margin-bottom: 14px; padding: 0; }
.finder .choice span { background: transparent; border-color: #3a434b; color: #fff; }
.finder .choice input:hover + span { border-color: #fff; }
.finder .choice input:checked + span { background: var(--yellow); border-color: var(--yellow); color: var(--ink); box-shadow: none; }
.finder__out { background: var(--char-2); border-radius: var(--r); padding: 30px; border-left: 5px solid var(--yellow); align-self: start; }
.finder__out h3 { color: #fff; font-size: 2.1rem; }
.finder__out h3 a { color: var(--yellow); }
.finder__out p { margin: 0 0 .8em; }
.finder__out .small { font-size: .9rem; color: var(--mist); margin: 0; }
@media (max-width: 900px) { .finder { grid-template-columns: 1fr; } }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.ctable { width: 100%; min-width: 780px; border-collapse: collapse; }
.ctable th, .ctable td { padding: 20px 22px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.ctable thead th { background: var(--ink); color: #fff; font: 700 1.1rem/1 var(--display); text-transform: uppercase; letter-spacing: .05em; }
.ctable tbody th { font: 700 1.6rem/1 var(--display); text-transform: uppercase; white-space: nowrap; }
.ctable tbody th a { text-decoration: none; }
.ctable tbody th a:hover { text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 3px; }
.ctable tbody tr:last-child > * { border-bottom: 0; }
.ctable tbody tr:hover { background: var(--paper); }
.ctable .level { margin: 0 0 8px; }
.note-sm { font-size: .9rem; color: var(--steel); margin-top: 14px; }

.benefits { display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.benefits li { padding: 30px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; transition: background-color .2s; }
.benefits li:hover { background: var(--yellow-soft); }
.benefits svg { width: 30px; height: 30px; color: var(--ink); margin-bottom: 28px; padding: 9px; background: var(--yellow); border-radius: 2px; box-sizing: content-box; }
.benefits b { display: block; font: 700 1.6rem/1 var(--display); text-transform: uppercase; margin-bottom: 8px; }
.benefits span { color: var(--steel); font-size: 1rem; }
@media (max-width: 1020px) { .benefits { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .benefits { grid-template-columns: 1fr; } }

.types { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.types article { padding: 34px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.types .k { display: inline-block; font-weight: 700; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; background: var(--yellow); padding: 7px 10px; margin-bottom: 20px; border-radius: 2px; }
.types h3 { font-size: 2.5rem; }
.types p { color: var(--steel); margin: 0; }
@media (max-width: 760px) { .types { grid-template-columns: 1fr; } }

.photo-wide { border-radius: var(--r); width: 100%; aspect-ratio: 16/10; object-fit: cover; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
@media (max-width: 960px) { .contact-grid { grid-template-columns: 1fr; } }
.panel { background: #fff; border: 1px solid var(--line); border-top: 6px solid var(--yellow); border-radius: var(--r); padding: clamp(24px, 4vw, 48px); }
.panel h2 { font-size: clamp(2.2rem, 3.4vw, 3rem); }
.info { background: var(--ink); color: #c9ced2; border-radius: var(--r); padding: clamp(24px, 3vw, 36px); }
.info h2 { color: #fff; font-size: 2.3rem; }
.info ul { list-style: none; padding: 0; margin: 0; }
.info li { display: grid; grid-template-columns: 50px 1fr; gap: 14px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line-dark); }
.info i { width: 50px; height: 50px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); border-radius: 2px; }
.info i svg { width: 22px; height: 22px; }
.info small { display: block; color: var(--mist); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 600; }
.info a, .info .v { color: #fff; font-weight: 600; font-size: 1.1rem; text-decoration: none; word-break: break-word; }
.info a:hover { color: var(--yellow); }
.next { list-style: none; padding: 0; margin: 0; counter-reset: n; }
.next li { counter-increment: n; display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 16px 0; border-top: 1px solid var(--line); }
.next li::before { content: counter(n); width: 40px; height: 40px; display: grid; place-items: center; background: var(--ink); color: var(--yellow); font: 700 1.3rem/1 var(--display); border-radius: 2px; }
.next b { display: block; font: 700 1.35rem/1.1 var(--display); text-transform: uppercase; }
.next span { color: var(--steel); font-size: .98rem; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: #9aa4ad; padding-top: clamp(64px, 8vw, 100px); overflow: hidden; }
.footer a { color: #e3e7ea; text-decoration: none; }
.footer a:hover { color: var(--yellow); }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 56px; }
.footer .logo { color: #fff; margin-bottom: 20px; }
.footer .logo small { color: var(--mist); }
.footer h2 { font: 700 1.3rem/1 var(--display); color: #fff; letter-spacing: .05em; margin-bottom: 20px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.footer p { max-width: 38ch; }
.footer__word { font: 700 clamp(3.4rem, 14.2vw, 14rem)/0.8 var(--display); text-transform: uppercase; color: transparent; -webkit-text-stroke: 1.5px #2f383f; white-space: nowrap; text-align: center; user-select: none; margin: 0; padding-bottom: 10px; }
.footer__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 22px 0 26px; font-size: .88rem; border-top: 1px solid var(--line-dark); }
@media (max-width: 960px) { .footer__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__top { grid-template-columns: 1fr; } }

/* ---------- Mobile call bar ---------- */
.callbar { display: none; }
@media (max-width: 760px) {
  .callbar { display: grid; grid-template-columns: 1fr 1.3fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 70; background: var(--ink); transform: translateY(110%); transition: transform .3s; padding-bottom: env(safe-area-inset-bottom); }
  .callbar.is-visible { transform: none; }
  .callbar a { display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 60px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; text-decoration: none; }
  .callbar a:first-child { color: #fff; }
  .callbar a:last-child { background: var(--yellow); color: var(--ink); }
  .callbar svg { width: 20px; height: 20px; }
  .footer { padding-bottom: 60px; }
}

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.mt-m { margin-top: 36px; } .mt-l { margin-top: 64px; } .mb-0 { margin-bottom: 0; }
.prose { max-width: 72ch; }
.prose h2 { font-size: 2.4rem; margin-top: 1.4em; }
.prose ul { padding-left: 1.2em; }
.not-found { min-height: 64vh; display: grid; place-items: center; text-align: center; }

.row--static:hover h3 { text-decoration: none; }
.page-hero.not-found h1 { max-width: none; }